Answer:
The method that will not give the correct number of inches is:
Multiply 2 1/2×3, and then add 34.
Explanation:
A small plant is 2 1/2 inches tall. How tall will it be in 3 weeks if it grows 34 inch each week?
For the first week
2 1/2 inches + 34 inches
For 3 weeks
= 2 1/2 inches + 3(34) inches
= 2 1/2 inches + (34 + 34 + 34)inches
= 2 1/2 inches + 102 inches
= 104 1/2 inches
The height of the small plant after 3 weeks
= 104 1/2 inches
Which method will NOT give the correct number of inches?
The method that will not give the correct number of inches is:
Multiply 2 1/2×3, and then add 34.